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1951 239 flahead

1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

1951 239 flahead

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Old

Mar 25, 2019 | 07:23 PM

#1

ynot321AB1

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Tuned

Joined: Dec 2017

Posts: 353

Likes: 6

From: Arkansas

1951 239 flahead

I have this engine I put into a 1950 F-1, I am trying to figure out if the motor is positive ground. The coil has a battery side and a distributor side, there is wire from the marked battery side of the coil going to the distributor thereby giving me the impression I have a positive ground. Any help I could get in finding out would be greatly appreciated .

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Old

Mar 25, 2019 | 07:29 PM

#2

raytasch

Believe Nothing

Joined: Jun 2004

Posts: 7,514

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From: W. Central FL.

Club FTE Silver Member

The truck was originally six volt positive ground. It will run either way.

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Old

Mar 25, 2019 | 07:37 PM

#3

ynot321AB1

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Tuned

Joined: Dec 2017

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From: Arkansas

Thanks

You mean it will not burn up like the solonoid and the voltage regulator if I run it as a negative ground?

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Old

Mar 25, 2019 | 08:06 PM

#4

ALBUQ F-1

Fleet Owner

Joined: Jul 2004

Posts: 27,294

Likes: 1,055

From: NM

Regardless of whether the truck is (+) or (-) ground, the BAT side of the coil should go to the ignition switch, not the distributor.

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